Finding the Fourth Proportional to 1,061.96, 1,592.69 and 445.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.96 : 1,592.69 = 445.59 : x
2. Step 2: Convert to fraction form
   1,061.96/1,592.69 = 445.59/x
3. Step 3: Cross multiply
   1,061.96x = 1,592.69 × 445.59
4. Step 4: Simplify right side
   1,061.96x = 709,684.51
5. Step 5: Solve for x
   x = 709,684.51/1,061.96
6. Step 6: Final answer
   x = 668.28